678431383 has 16 divisors (see below), whose sum is σ = 793589760. Its totient is φ = 567961056.

The previous prime is 678431363. The next prime is 678431389. The reversal of 678431383 is 383134876.

It is a cyclic number.

It is not a de Polignac number, because 678431383 - 2⁹ = 678430871 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (678431389) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 59610 + ... + 70072.

It is an arithmetic number, because the mean of its divisors is an integer number (49599360).

Almost surely, 2^678431383 is an apocalyptic number.

678431383 is a deficient number, since it is larger than the sum of its proper divisors (115158377).

678431383 is a wasteful number, since it uses less digits than its factorization.

678431383 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10686.

The product of its digits is 290304, while the sum is 43.

The square root of 678431383 is about 26046.7153975314. The cubic root of 678431383 is about 878.6892430746.

The spelling of 678431383 in words is "six hundred seventy-eight million, four hundred thirty-one thousand, three hundred eighty-three".